请问一下LM318中的COMP1 COMP2 COMP3这三个管脚有什么用,应该怎么样接?如果只是用于普通的跟随器是否还有必要接?求各位大神回答~谢谢啦!
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LM318内部集成了频率补偿电路,这三个引脚就是三个频率补偿引脚,如果不用的话,可直接悬空。
COMP1 COMP2 COMP3这三个管脚是用于频率(或相位)补偿的。
这个在老的,较高速的运放中时能看到,比如LM318,LM101.
三个管脚的话在不同的场合需求下会有不同的处理方式,手册中也大概提到些。
1.For inverting applications, feed-forward compensation boosts the slew rate to over 150 V/µs and almost double the bandwidth.
2. Overcompensation can be used with the amplifier for greater stability when maximum bandwidth is not needed. Further, a single capacitor can be added to reduce the settling time for 0.1% error band to under 1 µs